CN113818467B - Adjustable foundation structure of modular building and construction method thereof - Google Patents
Adjustable foundation structure of modular building and construction method thereof Download PDFInfo
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- CN113818467B CN113818467B CN202110970057.4A CN202110970057A CN113818467B CN 113818467 B CN113818467 B CN 113818467B CN 202110970057 A CN202110970057 A CN 202110970057A CN 113818467 B CN113818467 B CN 113818467B
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- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
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- 238000010008 shearing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
Abstract
An adjustable foundation structure of a modular building and a construction method thereof are disclosed, wherein the adjustable foundation structure comprises a foundation beam, a foundation embedded part, an adjusting part, a connecting assembly and a secondary grouting material; the top of the foundation beam is provided with a secondary grouting groove; the foundation embedded part comprises an embedded beam and an embedded rib; the lower part of the embedded beam is embedded at the bottom of the secondary grouting groove; the adjusting piece comprises an adjusting plate and a connecting bolt; the adjusting plate is arranged at the top of the embedded beam, and the adjusting plate is adjustably connected with the embedded beam through the connecting bolt; the connecting assembly comprises a connecting plate and a positioning pin; the connecting plate is arranged above the adjusting plate and is flush with the top surface of the foundation beam; the bottom of the connecting plate is connected with a leveling screw; the leveling screw rod fixes the connecting plate; a second connecting hole is formed in the position, close to the middle, of the connecting plate; the positioning pins correspondingly penetrate through the second connecting holes; and the secondary grouting material is poured into the secondary grouting groove. The invention solves the technical problems that the traditional basic embedded part has large deviation and low standard, can not meet the requirement of quick installation of the module and has high construction cost.
Description
Technical Field
The invention belongs to the technical field of building engineering, and particularly relates to an adjustable foundation structure of a modular building and a construction method thereof.
Background
In recent years, low-carbon economy and upgrading transformation of the building industry both put forward higher requirements on the traditional building industry, and the fabricated building is a novel and important structural form which meets the requirements. The modular building is one of the building forms with the highest prefabrication degree in the prefabricated building, and unique advantages of the modular building in the aspects of construction, management and environmental protection gradually develop into a hot spot of building industrialization in China. The prefabricated proportion of a modular building structure system generally exceeds 85%, the foundation of a modular building is an important link on a construction site, but related researches on the foundation connection of the modular building in China are relatively few at present, and particularly, the foundation connection mode of the modular building has the following defects:
1) The module building foundation adopts a concrete strip foundation, and the modules directly fall on the strip foundation and are connected with the module corner fittings through the wind-resistant corner fittings. Stability, typhoon resistance are relatively poor. And does not meet the design requirement of modular architectural mechanics.
2) The modularized building is in an embedded part form on a strip foundation, and is bolted with a bottom corner part of the modularized building through bolts on the embedded part, so that the positioning accuracy of the embedded part is required to be ensured in the foundation construction process. Meanwhile, the welding and mounting precision of the modular structure is guaranteed. Otherwise, the steel cannot be accurately positioned in the processes of field hoisting and construction.
3) The traditional modular building and foundation connection mode cannot well meet the requirements on mechanical properties such as shearing resistance, pulling resistance and the like.
Therefore, the novel foundation structure connection form of the modular building is urgently needed to be researched and developed, and the development of the modular building is met.
Disclosure of Invention
The invention aims to provide an adjustable foundation structure of a modular building and a construction method thereof, and aims to solve the technical problems that a traditional foundation embedded part is large in deviation and low in standard, cannot meet the requirement of quick installation of a module, and is high in construction cost.
In order to achieve the purpose, the invention adopts the following technical scheme.
An adjustable foundation structure of a modular building comprises a foundation beam, a foundation embedded part, an adjusting part, a connecting assembly and a secondary grouting material; a secondary grouting groove is formed in the top of the foundation beam and corresponds to the position connected with the module building; the foundation embedded part comprises an embedded beam and an embedded rib; the two embedded beams are longitudinally arranged in the secondary grouting groove at intervals in parallel, the lower part of each embedded beam is embedded at the bottom of the secondary grouting groove, and the upper part of each embedded beam exceeds the bottom surface of the secondary grouting groove; first through holes are arranged on the bottom plate of the embedded beam at intervals along the transverse direction, and second through holes are arranged on the top plate of the embedded beam at intervals along the transverse direction; the second through hole is a transverse long hole; the embedded ribs correspondingly penetrate through the first through holes; the adjusting piece comprises an adjusting plate and a connecting bolt; the adjusting plates are provided with one group and are arranged at the tops of the two embedded beams, and two ends of each adjusting plate are respectively erected on the two embedded beams; a third through hole is formed in the position, corresponding to the second through hole, of the adjusting plate; a first connecting hole is formed in the position, located between the two embedded beams, on the adjusting plate; the connecting bolts correspondingly penetrate through the second through holes and the third through holes to connect the adjusting plate with the embedded beam; the connecting assembly comprises a connecting plate and a positioning pin; the connecting plate is arranged above the group of adjusting plates and is flush with the top surface of the foundation beam; the bottom of the connecting plate is connected with a leveling screw at a position corresponding to the first connecting hole; the leveling screw rod penetrates through the first connecting hole to fix the connecting plate; a second connecting hole is formed in the position, close to the middle, of the connecting plate; the positioning pins correspondingly penetrate through the second connecting holes and are used for being connected with the module building; the secondary grouting material is poured into the secondary grouting groove, and the top surface of the secondary grouting material is flush with the top surface of the foundation beam.
Preferably, the buried beam is made of channel steel or H-shaped steel or i-shaped steel.
Preferably, the height of the lower part of the embedded beam embedded at the bottom of the secondary grouting groove is 30mm to 200mm; the height of the upper part of the embedded beam, which exceeds the bottom surface of the secondary grouting groove, is 30mm to 200mm.
Preferably, connecting rods are arranged between the two buried beams at intervals along the transverse direction; and two ends of the connecting rod are respectively welded with the embedded beam.
Preferably, the length of the embedded rib is 300mm to 2000mm.
Preferably, the side wall of the second connecting hole is provided with an internal thread; the upper part of the positioning pin is provided with a threaded hole along a vertical shaft; and the outer surface of the lower part of the positioning pin is provided with an external thread, and the positioning pin penetrates through the second connecting hole and is in threaded connection with the connecting plate.
Preferably, the connecting assembly further comprises an expansion ring, a clamping bolt and a clamping block; the expansion ring is cylindrical, and the lower part of the expansion ring is sleeved on the positioning pin; vertical strip-shaped grooves are arranged on the expansion ring at intervals along the circumferential direction, and the strip-shaped grooves divide the upper part of the expansion ring into a group of arc-shaped plates; a clamping block is arranged at the upper part of the outer side surface of each arc-shaped plate; the clamping block is placed at the top of the expansion ring, and a vertical hole channel is formed in the middle of the clamping block; internal threads are arranged in the vertical pore channel; the clamping bolt is arranged in the vertical hole channel in a penetrating mode, the upper end of the clamping bolt is in compression joint with the top of the clamping block, and the lower end of the clamping bolt exceeds the bottom of the clamping block and is in threaded connection with the positioning pin; the arc-shaped plate is outwards expanded under the pressure action of the clamping block and clamped in a corner fitting of the modular building.
Preferably, the concrete strength of the secondary grouting material is higher than that of the foundation beam.
A construction method of an adjustable foundation structure of a modular building comprises the following steps.
Step one, processing a component: and manufacturing a basic embedded part, an adjusting part and a connecting assembly.
Step two, fixing a basic embedded part: when the foundation beam is constructed, the embedded ribs are inserted into the foundation beam, and the foundation embedded parts are adjusted and fixed.
And step three, pouring the foundation embedded part and the foundation beam together to enable the upper part of the embedded beam to exceed the bottom surface of the secondary grouting groove.
And fourthly, after the template of the foundation beam is removed, rechecking the position and elevation of the foundation embedded part, and popping up a positioning line.
Step five, mounting an adjusting piece: and the adjusting plate is connected with the embedded beam through a connecting bolt.
Step six, mounting a connecting assembly: and connecting the connecting plate with an adjusting plate bolt through a leveling screw rod.
Step seven, installing a positioning pin: and the positioning pin is arranged in the second connecting hole in a penetrating manner and is connected with the connecting plate through a bolt.
Step eight, secondary grouting: grouting in the secondary grouting groove of the foundation beam, and filling and compacting gaps among the foundation embedded part, the adjusting part, the connecting assembly and the secondary grouting groove until the designed elevation of the top surface of the foundation beam is reached, so that construction is finished.
Compared with the prior art, the invention has the following characteristics and beneficial effects.
1. The adjustable foundation structure of the modular building is designed based on the characteristics of the modular building, is quick and convenient to install, and well solves the technical problems that the modular building has high precision, has large deviation and low standard with the traditional embedded part, and cannot meet the requirements of module installation.
2. The second through holes on the basic embedded part are transverse long holes, and the third through holes are longitudinal long holes; the structural design enables the adjusting part to be adjusted on the basic embedded part in the transverse direction and the longitudinal direction, the adjusting mode is simple, field installation can be completed quickly without professionals, and labor cost is reduced.
3. The adjustable foundation structure is reasonable in handling, the problem of stress on connection between the modular building and the foundation is well solved, and the stability of the modular building is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of an adjustable infrastructure according to the invention.
Fig. 2 is a schematic view of a lateral cross-section of the adjustable base structure of the present invention.
Fig. 3 is a schematic view of a longitudinal section of the adjustable base structure of the present invention.
Fig. 4 is a schematic view of a connection structure of the adjusting member and the connecting member according to the present invention.
Fig. 5 is a schematic structural view of an adjusting plate according to the present invention.
FIG. 6 is a schematic structural diagram of a basic embedded part according to the present invention.
Fig. 7 is a schematic structural view of the connecting assembly of the present invention.
Fig. 8 is a schematic view of a connection structure of the buried beam and the connection rod according to the present invention.
FIG. 9 is a schematic view of the structure of the expansion loop of the present invention.
Fig. 10 is a schematic structural view of a positioning pin according to the present invention.
Fig. 11 is a schematic structural view of the chucking block of the present invention.
Reference numerals are as follows: 1-foundation beam, 2-foundation embedded part, 2.1-embedded beam, 2.2-embedded bar, 2.3-connecting rod, 3-adjusting part, 3.1-adjusting plate, 3.2-connecting bolt, 4-connecting assembly, 4.1-connecting plate, 4.2-locating pin, 4.2.1-threaded hole, 4.2.2-external thread, 4.3-leveling screw, 4.4-expansion ring, 4.4.1-arc plate, 4.4.2-clamping block, 4.5-clamping bolt, 4.6-clamping block, 5-secondary grouting material, 6-secondary grouting groove, 7-first through hole, 8-second through hole, 9-first connecting hole, 10-third through hole, 11-second connecting hole, 12-vertical hole, 13-strip groove and 14-operating hole.
Detailed Description
As shown in fig. 1-11, the adjustable foundation structure of the modular building comprises a foundation beam 1, a foundation embedded part 2, an adjusting part 3, a connecting component 4 and a secondary grouting material 5; a secondary grouting groove 6 is formed in the top of the foundation beam 1 and corresponds to the position connected with the module building; the basic embedded part 2 comprises an embedded beam 2.1 and an embedded rib 2.2; two embedded beams 2.1 are longitudinally arranged in parallel in the secondary grouting groove 6 at intervals, the lower part of the embedded beam 2.1 is embedded at the bottom of the secondary grouting groove 6, and the upper part of the embedded beam 2.1 exceeds the bottom surface of the secondary grouting groove 6; first through holes 7 are arranged on the bottom plate of the embedded beam 2.1 at intervals along the transverse direction, and second through holes 8 are arranged on the top plate of the embedded beam 2.1 at intervals along the transverse direction; the second through holes 8 are transverse long holes; the embedded ribs 2.2 correspondingly penetrate through the first through holes 7; the adjusting piece 3 comprises an adjusting plate 3.1 and a connecting bolt 3.2; the adjusting plates 3.1 are provided with one group and are arranged at the tops of the two embedded beams 2.1, and two ends of each adjusting plate 3.1 are respectively overlapped on the two embedded beams 2.1; a third through hole 10 is formed in the position, corresponding to the second through hole 8, of the adjusting plate 3.1; a first connecting hole 9 is formed in the adjusting plate 3.1 and positioned between the two embedded beams 2.1; the connecting bolts 3.2 correspondingly penetrate through the second through holes 8 and the third through holes 10, and the adjusting plate 3.1 is connected with the embedded beam 2.1; the connecting assembly 4 comprises a connecting plate 4.1 and a positioning pin 4.2; the connecting plate 4.1 is arranged above the group of adjusting plates 3.1, and the connecting plate 4.1 is flush with the top surface of the foundation beam 1; a leveling screw rod 4.3 is connected to the bottom of the connecting plate 4.1 at a position corresponding to the first connecting hole 9; the leveling screw rod 4.3 penetrates through the first connecting hole 9 to fix the connecting plate 4.1; a second connecting hole 11 is formed in the position, close to the middle, of the connecting plate 4.1; the positioning pins 4.2 correspondingly penetrate through the second connecting holes 11 and are used for being connected with the modular building; the secondary grouting material 5 is poured into the secondary grouting groove 6, and the top surface of the secondary grouting material 5 is flush with the top surface of the foundation beam 1.
In this embodiment, the third through holes 10 are longitudinal long holes, and the third through holes 10 are perpendicular to the second through holes 8.
In this embodiment, the embedded beam 2.1 is made of channel steel, H-shaped steel or i-shaped steel.
In the embodiment, the height of the lower part of the embedded beam 2.1 embedded at the bottom of the secondary grouting groove 6 is 30mm to 200mm; the height of the upper part of the embedded beam 2.1 exceeding the bottom surface of the secondary grouting groove 6 is 30mm to 200mm.
In the embodiment, connecting rods 2.3 are arranged between two buried beams 2.1 at intervals along the transverse direction; and two ends of the connecting rod 2.3 are respectively connected with the embedded beam 2.1 in a welding manner.
In the embodiment, the length of the embedded rib 2.2 is 300mm to 2000mm; the embedded ribs 2.2 are connected with the embedded beams 2.1 in a welding mode.
In this embodiment, an internal thread is disposed on a side wall of the second connection hole 11; a threaded hole channel 4.2.1 is arranged on the upper part of the positioning pin 4.2 along the vertical shaft; and the outer surface of the lower part of the positioning pin 4.2 is provided with an external thread 4.2.2, and the positioning pin 4.2 is penetrated in the second connecting hole 11 and is in threaded connection with the connecting plate 4.1.
In this embodiment, the connecting assembly 4 further includes an expansion ring 4.4, a clamping bolt 4.5 and a clamping block 4.6; the expansion ring 4.4 is cylindrical, and the lower part of the expansion ring 4.4 is sleeved on the positioning pin 4.2; vertical strip-shaped grooves 13 are formed in the expansion ring 4.4 at intervals along the circumferential direction, and the upper part of the expansion ring 4.4 is divided into a group of arc-shaped plates 4.4.1 by the strip-shaped grooves 13; a clamping block 4.4.2 is arranged at the upper part of the outer side surface of each arc-shaped plate 4.4.1; the clamping block 4.6 is placed at the top of the expansion ring 4.4, and a vertical hole 12 is formed in the middle of the clamping block 4.6; internal threads are arranged in the vertical hole channel 12; the clamping bolt 4.5 penetrates through the vertical hole passage 12, the upper end of the clamping bolt 4.5 is in compression joint with the top of the clamping block 4.6, and the lower end of the clamping bolt 4.5 exceeds the bottom of the clamping block 4.6 and is in threaded connection with the positioning pin 4.2; the arc-shaped plates 4.4.1 are outwards opened under the pressure action of the clamping blocks 4.6 and are clamped in corner fittings of the modular building.
In this embodiment, the clamping block 4.6 is a ring with a variable cross section; the internal diameter of chucking piece 4.6 is along vertical unchangeable, and the external diameter of chucking piece 4.6 from top to bottom increases earlier then unchangeable, then reduces.
In this embodiment, the concrete strength of the secondary grouting material 5 is higher than that of the foundation beam 1.
In the embodiment, the leveling screw rod 4.3 is welded at the bottom of the connecting plate 4.1, the leveling screw rod 4.3 and the connecting plate 4.1 are subjected to plug welding, and a welding opening is level; connecting plate 4.1 carries out bolted connection through leveling screw 4.3 with regulating plate 3.1, carries out the elevation adjustment to connecting plate 4.1 through adjustment leveling screw 4.3's last bottom nut, and it is fixed to screw up with the nut from top to bottom after the adjustment is accomplished.
In the embodiment, the diameter and the number of the embedded ribs 2.2 are determined by design, and the length meets the requirement of anchoring length; the embedded ribs 2.2 of the foundation embedded parts 2 are inserted into the foundation beam 1, the position elevation of the embedded beam 2.1 is adjusted and fixed firmly, the embedded ribs 2.2 and the foundation beam 1 are poured together, and a certain mounting gap is reserved under the embedded beam 2.1.
In the embodiment, the connecting plate 4.1 and the leveling screw 4.3 are welded into a whole and can be used as an assembly; the positioning pin 4.2, the expansion ring 4.4, the clamping bolt 4.5 and the clamping block 4.6 are assembled into an assembly before installation, and the assembly is integrally installed on the connecting plate 4.1.
In this embodiment, a horizontal operation hole 14 is formed in the upper portion of the side wall of the positioning pin 4.2; when the positioning pin 4.2 is installed, the knob is turned by inserting the operating rod into the operating hole 14.
The construction method of the adjustable foundation structure of the modular building comprises the following steps.
Step one, processing a component: and manufacturing a basic embedded part 2, an adjusting part 3 and a connecting assembly 4.
Step two, fixing the basic embedded part 2: when the foundation beam 1 is constructed, the embedded ribs 2.2 are inserted into the foundation beam 1, and the foundation embedded parts 2 are adjusted and fixed.
And step three, pouring the foundation embedded part 2 and the foundation beam 1 together, so that the upper part of the embedded beam 2.1 exceeds the bottom surface of the secondary grouting groove 6.
And fourthly, after the template of the foundation beam 1 is removed, rechecking the position and elevation of the foundation embedded part 2, and popping up a positioning line.
Step five, mounting the adjusting piece 3: the adjusting plate 3.1 and the embedded beam 2.1 are connected through a connecting bolt 3.2.
Step six, mounting a connecting component 4: and connecting the connecting plate 4.1 with the adjusting plate 3.1 through a leveling screw 4.3 by bolts.
Step seven, installing a positioning pin 4.2: and the positioning pin 4.2 is arranged in the second connecting hole 11 in a penetrating way and is connected with the connecting plate 4.1 through a bolt.
Step eight, secondary grouting: grouting is carried out in the secondary grouting groove 6 of the foundation beam 1, gaps among the foundation embedded part 2, the adjusting part 3, the connecting component 4 and the secondary grouting groove 6 are filled compactly until the designed elevation of the top surface of the foundation beam 1 is reached, and construction is finished.
The above embodiments are not intended to be exhaustive or to limit the invention to other embodiments, and the above embodiments are intended to illustrate the invention and not to limit the scope of the invention, and all applications that can be modified from the invention are within the scope of the invention.
Claims (7)
1. An adjustable foundation structure of modular building, its characterized in that: the device comprises a foundation beam (1), a foundation embedded part (2), an adjusting part (3), a connecting assembly (4) and a secondary grouting material (5); a secondary grouting groove (6) is formed in the top of the foundation beam (1) and corresponds to the position connected with the module building; the foundation embedded part (2) comprises an embedded beam (2.1) and an embedded rib (2.2); the two embedded beams (2.1) are longitudinally arranged in parallel in the secondary grouting groove (6) at intervals, the lower part of each embedded beam (2.1) is embedded at the bottom of the secondary grouting groove (6), and the upper part of each embedded beam (2.1) exceeds the bottom surface of the secondary grouting groove (6); first through holes (7) are arranged on the bottom plate of the embedded beam (2.1) at intervals along the transverse direction, and second through holes (8) are arranged on the top plate of the embedded beam (2.1) at intervals along the transverse direction; the second through hole (8) is a transverse long hole; the embedded ribs (2.2) correspondingly penetrate through the first through holes (7); the adjusting piece (3) comprises an adjusting plate (3.1) and a connecting bolt (3.2); the adjusting plates (3.1) are provided with one group and are arranged at the tops of the two embedded beams (2.1), and two ends of each adjusting plate (3.1) are respectively overlapped on the two embedded beams (2.1); a third through hole (10) is formed in the position, corresponding to the second through hole (8), on the adjusting plate (3.1); a first connecting hole (9) is formed in the position, located between the two embedded beams (2.1), on the adjusting plate (3.1); the connecting bolts (3.2) correspondingly penetrate through the second through holes (8) and the third through holes (10), and the adjusting plate (3.1) is connected with the embedded beam (2.1); the connecting component (4) comprises a connecting plate (4.1) and a positioning pin (4.2); the connecting plate (4.1) is arranged above the group of adjusting plates (3.1), and the connecting plate (4.1) is flush with the top surface of the foundation beam (1); a leveling screw rod (4.3) is connected to the bottom of the connecting plate (4.1) at a position corresponding to the first connecting hole (9); the leveling screw (4.3) penetrates through the first connecting hole (9) to fix the connecting plate (4.1); a second connecting hole (11) is formed in the position, close to the middle, of the connecting plate (4.1); the positioning pins (4.2) correspondingly penetrate through the second connecting holes (11) and are used for being connected with the module building; the secondary grouting material (5) is poured into the secondary grouting groove (6), and the top surface of the secondary grouting material (5) is flush with the top surface of the foundation beam (1); the side wall of the second connecting hole (11) is provided with an internal thread; the upper part of the positioning pin (4.2) is provided with a threaded hole (4.2.1) along a vertical axis; the outer surface of the lower part of the positioning pin (4.2) is provided with an external thread (4.2.2), and the positioning pin (4.2) penetrates through the second connecting hole (11) and is in threaded connection with the connecting plate (4.1); the connecting assembly (4) further comprises an expansion ring (4.4), a clamping bolt (4.5) and a clamping block (4.6); the expansion ring (4.4) is cylindrical, and the lower part of the expansion ring (4.4) is sleeved on the positioning pin (4.2); vertical strip-shaped grooves (13) are formed in the expansion ring (4.4) at intervals along the circumferential direction, and the upper portion of the expansion ring (4.4) is divided into a group of arc-shaped plates (4.4.1) by the strip-shaped grooves (13); a clamping block (4.4.2) is arranged at the upper part of the outer side surface of each arc-shaped plate (4.4.1); the clamping block (4.6) is placed at the top of the expansion ring (4.4), and a vertical hole channel (12) is formed in the middle of the clamping block (4.6); internal threads are arranged in the vertical pore channel (12); the clamping bolt (4.5) penetrates through the vertical hole (12), the upper end of the clamping bolt (4.5) is in compression joint with the top of the clamping block (4.6), and the lower end of the clamping bolt (4.5) exceeds the bottom of the clamping block (4.6) and is in threaded connection with the positioning pin (4.2); the arc-shaped plates (4.4.1) are outwards expanded under the pressure action of the clamping blocks (4.6) and clamped in corner pieces of the modular building; the clamping block 4.6 is in a variable cross-section annular shape; the internal diameter of chucking piece 4.6 is along vertical unchangeable, and the external diameter of chucking piece 4.6 from top to bottom increases earlier then unchangeable, then reduces.
2. Adjustable foundation structure for modular buildings according to claim 1, characterized in that: the buried beam (2.1) is made of channel steel or H-shaped steel or I-shaped steel.
3. Adjustable foundation structure for modular buildings according to claim 1, characterized in that: the height of the lower part of the embedded beam (2.1) embedded at the bottom of the secondary grouting groove (6) is 30mm to 200mm; the height of the upper part of the embedded beam (2.1) exceeding the bottom surface of the secondary grouting groove (6) is 30mm to 200mm.
4. Adjustable foundation structure of modular buildings according to claim 1, characterized in that: connecting rods (2.3) are arranged between the two buried beams (2.1) at intervals along the transverse direction in parallel; and two ends of the connecting rod (2.3) are respectively welded with the embedded beam (2.1).
5. Adjustable foundation structure of modular buildings according to claim 1, characterized in that: the length of the embedded rib (2.2) is 300 mm-2000 mm.
6. Adjustable foundation structure of modular buildings according to claim 1, characterized in that: and the concrete strength of the secondary grouting material (5) is higher than that of the foundation beam (1).
7. A method of constructing an adjustable foundation structure for a modular building according to any one of claims 1-6, comprising the steps of:
step one, processing a component: manufacturing a basic embedded part (2), an adjusting part (3) and a connecting assembly (4);
step two, fixing the basic embedded part (2): when the foundation beam (1) is constructed, the embedded ribs (2.2) are inserted into the foundation beam (1), and the foundation embedded parts (2) are adjusted and fixed;
pouring the foundation embedded part (2) and the foundation beam (1) together to enable the upper part of the embedded beam (2.1) to exceed the bottom surface of the secondary grouting groove (6);
after the template of the foundation beam (1) is removed, rechecking the position and elevation of the foundation embedded part (2), and popping up a positioning line;
step five, installing an adjusting piece (3): the adjusting plate (3.1) is connected with the embedded beam (2.1) through a connecting bolt (3.2);
step six, installing a connecting assembly (4): connecting the connecting plate (4.1) with the adjusting plate (3.1) through a leveling screw (4.3) by a bolt;
step seven, installing a positioning pin (4.2): the positioning pin (4.2) penetrates through the second connecting hole (11) and is connected with the connecting plate (4.1) through a bolt;
step eight, secondary grouting: grouting in the secondary grouting groove (6) of the foundation beam (1), and filling gaps among the foundation embedded part (2), the adjusting part (3), the connecting component (4) and the secondary grouting groove (6) densely until the top surface of the foundation beam (1) is designed to be an elevation, so that construction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970057.4A CN113818467B (en) | 2021-08-23 | 2021-08-23 | Adjustable foundation structure of modular building and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110970057.4A CN113818467B (en) | 2021-08-23 | 2021-08-23 | Adjustable foundation structure of modular building and construction method thereof |
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| CN203654096U (en) * | 2013-12-15 | 2014-06-18 | 河南省电力勘测设计院 | Track leveling support |
| CN105256926A (en) * | 2015-11-05 | 2016-01-20 | 深圳市三鑫幕墙工程有限公司 | Board slot type embedded part system |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
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| US7171788B2 (en) * | 2002-04-05 | 2007-02-06 | Joseph Bronner | Masonry connectors and twist-on hook and method |
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| CN203654096U (en) * | 2013-12-15 | 2014-06-18 | 河南省电力勘测设计院 | Track leveling support |
| CN105256926A (en) * | 2015-11-05 | 2016-01-20 | 深圳市三鑫幕墙工程有限公司 | Board slot type embedded part system |
| CN112095783A (en) * | 2020-08-10 | 2020-12-18 | 中建集成建筑有限公司 | Locking device between modules, node structure and construction method of node structure |
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